Reimplement MoveOperation.

chrome/browser/chromeos/drive/resource_metadata_unittest.cc

Index: chrome/browser/chromeos/drive/resource_metadata_unittest.cc
diff --git a/chrome/browser/chromeos/drive/resource_metadata_unittest.cc b/chrome/browser/chromeos/drive/resource_metadata_unittest.cc
index 4f95ced2539e1120259bdf51875267ea85056a50..5900546aa6203eb299a64e79dec16aa88b32c0b6 100644
--- a/chrome/browser/chromeos/drive/resource_metadata_unittest.cc
+++ b/chrome/browser/chromeos/drive/resource_metadata_unittest.cc
@@ -959,6 +959,11 @@ TEST_F(ResourceMetadataTest, RefreshEntry) {
   EXPECT_EQ(FILE_ERROR_NOT_FOUND, resource_metadata_->GetResourceEntryByPath(
       base::FilePath::FromUTF8Unsafe("drive/root/dir2"), &entry));
 
+  // Make sure that directory cannot move under a file.
+  dir_entry.set_parent_local_id(file_entry.resource_id());
+  EXPECT_EQ(FILE_ERROR_NOT_A_DIRECTORY,
+            resource_metadata_->RefreshEntry(dir_entry));
+
   // Cannot refresh root.
   dir_entry.Clear();
   dir_entry.set_resource_id(util::kDriveGrandRootSpecialResourceId);